#A556C0
Closest named color: Amethyst (#9B5FC0). oklch(59% 0.173 316.8), rgb(165, 86, 192).
Aa
Black text reads best on this color (4.69:1).
About this color
#A556C0 is a medium-dark, vivid purple. In OKLCH its lightness is 59%, its chroma 0.173 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Amethyst (#9B5FC0), ΔE 0.025 away. Black text reads best on it, at 4.69:1.
| Hue family | Purples |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.173) |
| Temperature | in between |
| Nearest name | Amethyst (#9B5FC0) |
| Black text | 4.69:1 |
| White text | 4.47:1 |
Values
| HEX | #A556C0 |
| RGB | rgb(165, 86, 192) |
| HSL | hsl(285, 46%, 55%) |
| OKLCH | oklch(59% 0.173 316.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #A556C0 | 4.47:1 | AA large text | Lc -76.1 | Fine for body text |
| Black text on #A556C0 | 4.69:1 | AA | Lc 33.5 | Non-text elements, placeholder text |
| #A556C0 text on white | 4.47:1 | AA large text | Lc 70.6 | Content text, not long reading |
| #A556C0 text on black | 4.69:1 | AA | Lc -31.0 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F8F3FA
oklch(97% 0.011 316.5)
-
Step 100
100
#F0E6F4
oklch(93.7% 0.021 316.5)
-
Step 200
200
#E5D1ED
oklch(88.5% 0.043 316.4)
-
Step 300
300
#D5B2E2
oklch(81% 0.076 316.8)
-
Step 400
400
#C087D4
oklch(70.7% 0.125 317)
-
Step 500
500
#AF67C8
oklch(63.1% 0.158 316.9)
-
Step 600
600 (this color)
#A556C0
oklch(59% 0.173 316.8)
-
Step 700
700
#843C9C
oklch(49.2% 0.161 316.8)
-
Step 800
800
#6B327E
oklch(42.7% 0.133 316.9)
-
Step 900
900
#572D65
oklch(37.7% 0.103 317.1)
-
Step 950
950
#331B3B
oklch(27% 0.065 317.2)
#A556C0 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #3D72C3 | 0.158 |
| Deuteranopia (no green cones) | #587ABD | 0.140 |
| Tritanopia (no blue cones) | #A46783 | 0.112 |
| Achromatopsia (no color) | #777777 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A556C0
#A556C0
oklch(59% 0.173 316.8)
- #45930F
#45930F
oklch(59% 0.173 136.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #A556C0, closest first.
No curated palette has a color within ΔE 0.04 of #A556C0.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Amethyst #9B5FC0 ΔE 0.025
- Deep Lavender #8D5EB7 ΔE 0.047
- Medium Orchid #BA55D3 ΔE 0.047
- Purply #983FB2 ΔE 0.056
- Deep Lilac #966EBD ΔE 0.059
- Soft Purple #A66FB5 ΔE 0.064
- Pinky Purple #C94CBE ΔE 0.067
- Medium Purple #9370DB ΔE 0.070
Use #A556C0 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.